Update wallpaper window pages only at processing (815497e1) · Commits · e / os / android_frameworks_base

core/java/android/service/wallpaper/WallpaperService.java

+15 −119

Original line number	Diff line number	Diff line
		@@ -196,7 +196,7 @@ public abstract class WallpaperService extends Service {
		EngineWindowPage[] mWindowPages = new EngineWindowPage[1];
		Bitmap mLastScreenshot;
		int mLastWindowPage = -1;
		float mLastPageOffset = 0;
		private boolean mResetWindowPages;

		// Copies from mIWallpaperEngine.
		HandlerCaller mCaller;
		@@ -787,7 +787,7 @@ public abstract class WallpaperService extends Service {
		Log.w(TAG, "Can't notify system because wallpaper connection "
		+ "was not established.");
		}
		resetWindowPages();
		mResetWindowPages = true;
		processLocalColors(mPendingXOffset, mPendingXOffsetStep);
		} catch (RemoteException e) {
		Log.w(TAG, "Can't notify system because wallpaper connection was lost.", e);
		@@ -1515,6 +1515,7 @@ public abstract class WallpaperService extends Service {
		float finalXOffsetStep = xOffsetStep;
		float finalXOffset = xOffset;
		mHandler.post(() -> {
		resetWindowPages();
		int xPage = xCurrentPage;
		EngineWindowPage current;
		if (mWindowPages.length == 0 \|\| (mWindowPages.length != xPages)) {
		@@ -1699,15 +1700,15 @@ public abstract class WallpaperService extends Service {

		private void resetWindowPages() {
		if (supportsLocalColorExtraction()) return;
		if (!mResetWindowPages) return;
		mResetWindowPages = false;
		mLastWindowPage = -1;
		mHandler.post(() -> {
		for (int i = 0; i < mWindowPages.length; i++) {
		EngineWindowPage page = mWindowPages[i];
		if (page != null) {
		page.setLastUpdateTime(0L);
		}
		}
		});
		}

		private int getRectFPage(RectF area, float step) {
		@@ -1730,40 +1731,8 @@ public abstract class WallpaperService extends Service {
		if (DEBUG) {
		Log.d(TAG, "addLocalColorsAreas adding local color areas " + regions);
		}

		List<WallpaperColors> colors = getLocalWallpaperColors(regions);
		mHandler.post(() -> {
		float step = mPendingXOffsetStep;
		if (!validStep(step)) {
		step = 0;
		}
		for (int i = 0; i < regions.size(); i++) {
		RectF area = regions.get(i);
		if (!isValid(area)) continue;
		int pageInx = getRectFPage(area, step);
		// no page should be null
		EngineWindowPage page = mWindowPages[pageInx];

		if (page != null) {
		mLocalColorAreas.add(area);
		page.addArea(area);
		WallpaperColors color = colors.get(i);
		if (color != null && !color.equals(page.getColors(area))) {
		page.addWallpaperColors(area, color);
		}
		} else {
		mLocalColorsToAdd.add(area);
		}
		}
		for (int i = 0; i < colors.size() && colors.get(i) != null; i++) {
		try {
		mConnection.onLocalWallpaperColorsChanged(regions.get(i), colors.get(i),
		mDisplayContext.getDisplayId());
		} catch (RemoteException e) {
		Log.e(TAG, "Error calling Connection.onLocalWallpaperColorsChanged", e);
		return;
		}
		}
		mLocalColorsToAdd.addAll(regions);
		processLocalColors(mPendingXOffset, mPendingYOffset);
		});

		@@ -1784,88 +1753,15 @@ public abstract class WallpaperService extends Service {
		if (!validStep(step)) {
		return;
		}
		for (int i = 0; i < regions.size(); i++) {
		RectF area = regions.get(i);
		if (!isValid(area)) continue;
		int pageInx = getRectFPage(area, step);
		// no page should be null
		EngineWindowPage page = mWindowPages[pageInx];
		if (page != null) {
		page.removeArea(area);
		for (int i = 0; i < mWindowPages.length; i++) {
		for (int j = 0; j < regions.size(); j++) {
		EngineWindowPage page = mWindowPages[i];
		if (page != null) page.removeArea(regions.get(j));
		}
		}
		});
		}

		private @NonNull List<WallpaperColors> getLocalWallpaperColors(@NonNull List<RectF> areas) {
		ArrayList<WallpaperColors> colors = new ArrayList<>(areas.size());
		float step = mPendingXOffsetStep;
		if (!validStep(step)) {
		if (DEBUG) Log.d(TAG, "invalid step size " + step);
		step = 1.0f;
		}
		for (int i = 0; i < areas.size(); i++) {
		RectF currentArea = areas.get(i);
		if (currentArea == null \|\| !isValid(currentArea)) {
		Log.wtf(TAG, "invalid local area " + currentArea);
		continue;
		}
		EngineWindowPage page;
		RectF area;
		int pageIndx;
		synchronized (mLock) {
		pageIndx = getRectFPage(currentArea, step);
		if (mWindowPages.length == 0 \|\| pageIndx < 0
		\|\| pageIndx > mWindowPages.length \|\| !isValid(currentArea)) {
		colors.add(null);
		continue;
		}
		area = generateSubRect(currentArea, pageIndx, mWindowPages.length);
		page = mWindowPages[pageIndx];
		}
		if (page == null) {
		colors.add(null);
		continue;
		}
		float finalStep = step;
		int finalPageIndx = pageIndx;
		Bitmap screenShot = page.getBitmap();
		if (screenShot == null) screenShot = mLastScreenshot;
		if (screenShot == null \|\| screenShot.isRecycled()) {
		if (DEBUG) {
		Log.d(TAG, "invalid bitmap " + screenShot
		+ " for page " + finalPageIndx);
		}
		page.setLastUpdateTime(0);
		colors.add(null);
		continue;
		}
		Bitmap b = screenShot;
		Rect subImage = new Rect(
		Math.round(area.left * b.getWidth() / finalStep),
		Math.round(area.top * b.getHeight()),
		Math.round(area.right * b.getWidth() / finalStep),
		Math.round(area.bottom * b.getHeight())
		);
		subImage = fixRect(b, subImage);
		if (DEBUG) {
		Log.d(TAG, "getting subbitmap of " + subImage.toString()
		+ " for RectF " + area.toString()
		+ " screenshot width " + screenShot.getWidth() + " height "
		+ screenShot.getHeight());
		}
		Bitmap colorImg = Bitmap.createBitmap(screenShot,
		subImage.left, subImage.top, subImage.width(), subImage.height());
		if (DEBUG) {
		Log.d(TAG, "created bitmap " + colorImg.getWidth() + ", "
		+ colorImg.getHeight());
		}
		WallpaperColors color = WallpaperColors.fromBitmap(colorImg);
		colors.add(color);
		}
		return colors;
		}

		// fix the rect to be included within the bounds of the bitmap
		private Rect fixRect(Bitmap b, Rect r) {
		r.left = r.left >= r.right \|\| r.left >= b.getWidth() \|\| r.left > 0